US2016218347A1PendingUtilityA1

Secondary battery

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Assignee: SAMSUNG SDI CO LTDPriority: Jan 28, 2015Filed: Jun 2, 2015Published: Jul 28, 2016
Est. expiryJan 28, 2035(~8.5 yrs left)· nominal 20-yr term from priority
Inventors:Mooryong BaekInsoo Park
H01M 50/531H01M 50/24Y02P70/50H01M 10/0431H01M 2200/00H01M 2200/10Y02E60/10H01M 2/348H01M 50/581H01M 50/20H01M 10/486
33
PatentIndex Score
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Claims

Abstract

Provided is a secondary battery, which has increased reliability by providing a stable connection structure of a temperature sensitive element. The secondary battery includes an electrode assembly formed by winding a positive electrode plate, a negative electrode plate and a separator and including a pair of lead tabs drawn from the positive electrode plate and the negative electrode plate, a pouch sealing the electrode assembly and including a terrace portion exposing the lead tabs to the outside, a temperature sensitive element formed in the terrace portion and electrically connected to the lead tabs, and a movement preventing tape formed in the terrace portion to cover the temperature sensitive element.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A secondary battery comprising:
 an electrode assembly formed by winding a positive electrode plate, a negative electrode plate and a separator and including a pair of lead tabs drawn from the positive electrode plate and the negative electrode plate;   a pouch sealing the electrode assembly and including a terrace portion exposing the lead tabs to the outside;   a temperature sensitive element formed in the terrace portion and electrically connected to the lead tabs; and   a movement preventing tape formed in the terrace portion to cover the temperature sensitive element.   
     
     
         2 . The secondary battery of  claim 1 , wherein the movement preventing tape is formed to cover the lead tabs adjacent thereto together with the temperature sensitive element. 
     
     
         3 . The secondary battery of  claim 1 , wherein the movement preventing tape extends to cover at least a portion of a top portion of the terrace portion. 
     
     
         4 . The secondary battery of  claim 1 , wherein one end of the temperature sensitive element is coupled to one of the lead tabs and the other end of the temperature sensitive element is coupled to a connection tab. 
     
     
         5 . The secondary battery of  claim 4 , wherein the movement preventing tape is formed to cover the lead tabs and the connection tab together with the temperature sensitive element. 
     
     
         6 . The secondary battery of  claim 1 , wherein the movement preventing tape is made of a flame retardant material. 
     
     
         7 . The secondary battery of  claim 1 , wherein the movement preventing tape includes a Nomex™ brand tape. 
     
     
         8 . The secondary battery of  claim 1 , further comprising a shock absorbing tape formed on the movement preventing tape. 
     
     
         9 . The secondary battery of  claim 8 , wherein the shock absorbing tape is formed to cover the temperature sensitive element. 
     
     
         10 . The secondary battery of  claim 8 , wherein the shock absorbing tape is formed between an external protective circuit module and the temperature sensitive element. 
     
     
         11 . The secondary battery of  claim 8 , wherein the shock absorbing tape is made of a flame retardant material. 
     
     
         12 . The secondary battery of  claim 8 , wherein the shock absorbing tape includes a Poron™ brand tape.

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